Pulmonary congestion is a possible cause of Olympic bobsledder Steven Holcomb’s death on Saturday, USA Bobsled & Skeleton announced on Sunday.

The results of a preliminary report by the Adirondack Medical Center revealed the potential cause, pending toxicology performed by an independent laboratory. The preliminary report was negative for drugs, and USA Bobsled said there is no suspicion of foul play.

Holcomb, 37, was found to have died in his sleep at the U.S. Olympic Training Center in Lake Placid on Saturday.

Holcomb won Olympic gold in 2010, piloting the “Night Train” to win the first U.S. gold medal in the four-man bobsled since 1948. In Sochi, Holcomb won bronze medals in the two-man and four-man bobsled.

"Our deepest sympathies go out to the family, friends and teammates of our dear friend Steven Holcomb," said USA Bobsled & Skeleton Board of Directors Chairman Pete Piechoski. "Steve was a wonderful man, and a great friend. He was a fearless competitor whose light shone bright and guided us all. You will be sorely missed, Steve. God's peace to you on your next journey."

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